CVE-2025-55234

Vulnérabilité élevée dans Windows 10 Version 1507 (Microsoft)

CVSS 8.8 · Élevée
EPSS 20.8%
Microsoft•Windows 10 Version 1507•Versions : <10.0.10240.21128, <6.2.9200.25675, 10.0.25398.0, 10.0.19044.0, <10.0.20348.4171, <10.0.19045.6332, <10.0.22631.5909, 10.0.19045.0, 6.2.9200.0, 10.0.10240.0, 6.1.7601.0, 6.0.6003.0, <6.1.7601.27929, <10.0.26100.6584, <10.0.22621.5909, <10.0.25398.1849, <6.0.6003.23529, 10.0.22621.0, 10.0.17763.0, 10.0.26100.0, <10.0.14393.8422, 10.0.14393.0, 10.0.20348.0, <10.0.19044.6332, 6.3.9600.0, <6.3.9600.22774, <10.0.17763.7792, 10.0.22631.0

Description

SMB Server might be susceptible to relay attacks depending on the configuration. An attacker who successfully exploited these vulnerabilities could perform relay attacks and make the users subject to elevation of privilege attacks. The SMB Server already supports mechanisms for hardening against relay attacks: SMB Server signing SMB Server Extended Protection for Authentication (EPA) Microsoft is releasing this CVE to provide customers with audit capabilities to help them to assess their environment and to identify any potential device or software incompatibility issues before deploying SMB Server hardening measures that protect against relay attacks. If you have not already enabled SMB Server hardening measures, we advise customers to take the following actions to be protected from these relay attacks: Assess your environment by utilizing the audit capabilities that we are exposing in the September 2025 security updates. See Support for Audit Events to deploy SMB Server Hardening—SMB Server Signing &amp; SMB Server EPA. Adopt appropriate SMB Server hardening measures.

Gravité et risque d'exploitation

CVE-2025-55234 obtient un score CVSS de 8.8/10, soit une gravité élevée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 20.76 %, ce qui la place devant 97.5 % des CVE référencées.

Que faire ?

  • Vérifiez si Windows 10 Version 1507 (versions <10.0.10240.21128, <6.2.9200.25675, 10.0.25398.0, 10.0.19044.0, <10.0.20348.4171, <10.0.19045.6332, <10.0.22631.5909, 10.0.19045.0, 6.2.9200.0, 10.0.10240.0, 6.1.7601.0, 6.0.6003.0, <6.1.7601.27929, <10.0.26100.6584, <10.0.22621.5909, <10.0.25398.1849, <6.0.6003.23529, 10.0.22621.0, 10.0.17763.0, 10.0.26100.0, <10.0.14393.8422, 10.0.14393.0, 10.0.20348.0, <10.0.19044.6332, 6.3.9600.0, <6.3.9600.22774, <10.0.17763.7792, 10.0.22631.0) est présent sur votre parc.
  • Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
  • À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
  • Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.

Références